Adjusting mechanism.



H. STARKER.

ADJUSTING MECHANISM.

APPLICATION FILED Au(;.29. 19x2.

Patented Feb. 20, 1917.

MTBJESSES subject HEINRICH STABKER, 0F

smus' rme MECHANISM;

Application filed August 29, 1912. Serial No. 717,669.

2'?) (iii whom it may; concern. 1

it known that I, HEINRICH STARKER, a

of the Pop tor of Germany, residing at sse 76, Stuggart, Gercertain new and useful Adjusting Mechanism;

521 l l dc herehy declare the following to be g and exact description of the invention, such. as will enable others skilled in the art :to which it appertains to make and use the same. T

T he the present invention is to adjusting mechanisms embodying mitting connection attached to the device to be adjusted for pulling the device toward one limit of its angular movement, and also. embodying a spring constantly tending to force the device toward its other limit of angular movement, the particular form of spring used serving also to form a substantially dust and water tight joint around the connection between the device to be adjusted and the transmitting connection. The adjusting mechanism herein disclosed is particularly well adapted for association wi 1 he mechanical interrupter of electrical WIll'tlOn systems for motor cycles and the like wherein the cam ring of the inte'rup" may be adjusted to fully advanced pc tion of ignition by the operator pulling on the transmitting connection and latching the transmittingconnection to maintain the period of ignition at this time point,

While the engine is running, and wherein the coring turns the cam ring to its fully retarded position of ignition suitable for starting the engine when the latch is released by the operator.

in the accompanying drawings, illustrating the preferred form of my invention in application to the cam ring of a mechanical interrupter, as an example, Figure 1 represents the front of a mechanical interrupter with its rotatable member mounted on the shaft of an ignition current machine; and- Fig 9 represents a side elevation partly in section on line i--el of Fig, 1.

The interrupter housing B is, fastened to the front of the ignition current machine The cam ring O'is inserted in the housing so to readily turn therein, and a stop I), preferably in the form of a lubricating conduit, passes through a slct E in. the cam ringand therehy ii 7' adjustment cf the f Tooth directions. The usual Specification of Letters'latent.

srurrennr, Gunman Y AssIeNoR T0 Tim FIRM or Rosana BOSCH, or STUTTGART, GERMANY. 1

Patented Feb. 20, 1917.

'form of adjusting lever F is provided and any suitable transmitting connection, flexible or otherwise, but preferably comprising flexible wire N, capable of following a circuitous path, may be fastened to the adjusting lever and also to the usual formv of latch in convenient position for operation. The mechanical interrupter shown is of the usual form, having the-circuit interruptingele-- ments R mounted on an interrupter disk' which is fastened on the shaft ofthe ignition current machine and thenormally stun tionary deflecting cams'Sadapted to odically cooperate with the elements 1 to interrupt the circuit of the ignitioncurrent machine at the adjusted time point bf :igni

tion, for the purpose of generatingsparking voltages therein.

A fork M is linked to the adjusting 'lver F, and in this fork the wire N'is secured by means of a conical clamping device of the well known kind. The bracket 0 forming an abutment fixed in position relatively to the cam ring C is fastened to the ignition current machine, and a guide sleeve L is screwed into the abutment to form a guiding socket for the wire N, which'passes therethrough. The spring K is'of the well known bifurcated spiral type and extends around the Wire N from the abutment O to the fork M. This spring not only constantly tends to force the cam ring 0 to one extreme position of its angular. movement,

corresponding tol-the fully retarded time point of ignition, as determined by the stop D in the slot E, but it also maintains such a tight fit around the fork M and the abutment Q as to form a substantially dust and water tight joint between the wire N and the adjusting lever F. When the operator pulls on the wire N, toward its other extreme sponding to fully advanced ignition. this position, or in any other position e f-ad; justment by any suitable device, the-spring .K constantly tendingto forcethecam ring from this position to its other limit, corresponding to the fully retarded ignition. I I

Having thus described my invention, what I claim is:

1.'In a device of the kind described, the combination with a support and an angularly adjustable device on the support, of

position corre tim'ej'point of the cam'ring C is turned} The wire N may be latched in time point of cable from a adjusting mechanism for the device operdistant point and including a wire-like flexible metallic actuator attached at one end to said device, and a housing for the actuator to protect the actuator against dust and rust, said housing including an abutmenton said support, a flexible sheath above the abutment, and a flexible universally resilient sheath between the abutment and the device, the housing being closed dust-tight between the device and a point beyond the abutment, and the actuator being lengthwisely movable relatively to the housing; substantially as described.

2. In a device of the kind described, the combination with a support and an angularly adjustable device on the support, of adjusting mechanism for the device operable from a distant point and including a pivoted abutment on the device and a Wire-like flexitween the fixed abutment point ble metallic actuator attached at one end to said pivotedabutment, and a housing for the actuator to protect the actuator against dust and rust, said housing including a fixed abutment on said su port, a flexible sheath above the fixed abutment, and a flexible universally resilient sheath ber and the pivoted abutment, the housing being closed dusttight between the pivoted abutment and a beyond the fixed abutment, and the actuator being lengthwisely movable relatively to the housing; substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

HEINRICH STARKER. Witnesses:

GUSTAV MAIER,

. WAL'rHnR Simmons. 

